Re: [libvirt] PATCH: Fix KVM maximum vCPU count

[Atsushi SAKAI <sakaia jp fujitsu com>]

Hi, Dan

Thank you for commenting.
Of course, I agree your point 
and that you are commiting it.

I am commenting it 
just because 2 month is not old ago in my feeling.


Here Is the memo for my understanding.
(Since I am not familiar with KVM)
2007/07/19 kvm-30 Guest SMP support
     (Parameter(KVM_MAX_VCPUS) changes from 1 to 4 in KVM-28)
2008/02/26 kvm-62 VCPUS changes 4 to 16

Thanks
Atsushi SAKAI



"Daniel P. Berrange" <berrange redhat com> wrote:

> On Tue, May 13, 2008 at 01:29:35PM +0900, Atsushi SAKAI wrote:
> > Hi, Dan
> > 
> > I think the qemu_driver should check KVM_API_VERSION for SMP support.
> > How do you think?
> > I am worrying about MAX_VCPUS=16 changes to 32 in future.
> 
> If it increases to 32, then we should certainly check based on something
> like KVM_API_VERSION. I just don't think its worth checking for the 
> ancient versions which only support 1 cpu because no one will be seriously
> using them.
> 
> Regards,
> Daniel.
> -- 
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